WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.

DOWNPOUR SOAKS NARROW SOUTH SUBURBAN CORRIDOR

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There was no thunder or lightning. But, rain late Thursday fell with the intensity of a thunderstorm downpour over south suburban sections of the Chicago area. A narrow 10 mile wide corridor from Kankakee County northeast into Indiana’s Lake and far northern Porter Counties was hardest hit. As much as 1.50” of rain fell, much of it in just an hour’s time. The rain, expected to linger at times into Friday could mix with some wet snowflakes in spots late Friday night into Saturday morning. It’s the first stage in the formation of a massive autumn low pressure system expected to dominate the weather here through early Saturday night.
Chicago’s 56° Thusrday high was the city’s coolest since May 15. But, the chill was of record proportions just to the southwest in Missouri. There, 54 and 51° highs recorded at West Plains and Vichy were the coolest ever for October 14.